Maricopa Mountains are a range of mountains in Maricopa County, Arizona.The range runs from 33.1475°N -112.5731°W and extends southeastward to 32.8953°N -112.3447°W. The range is protected as the North Maricopa Mountains Wilderness and South Maricopa Mountains Wilderness, divided by Arizona State Route 238 all within the Sonoran Desert National Monument.